value-add devices and adaptors.
The combination of PCIe Gen4 and
InfiniBand provides clients with
the best network technology for
scaling workloads, Boday notes.
Meanwhile, AC922 users can
run artificial intelligence (AI)
and HPC workloads faster by employing NVIDIA's
NVLink. The POWER9 processor is the only one on
the marketplace to have NVLink directly embedded
in the processor. This provides 5.6x the bandwidth
from NVIDIA CPUs to GPUs compared to PCIe 3. The
larger bandwidth is critical for Linux users who are
tackling large complex projects. These advanced
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I/O interfaces on the POWER9
processor deliver nearly 4x the
performance compared to x86
for deep-learning frameworks,
Boday says.
Accessing data from memory
is critical in today's environment
where speed of insights can
be linked to an architecture's
memory bandwidth. This includes
workloads such as in-memory
databases (including SAP
HANA) or large, complex AI
models where the model size
has outgrown accelerator local
memory capacity. The superior
memory bandwidth of the
POWER9 processor-which is
nearly 2x larger than x86-is
a key differentiator, creating a
balanced system and enabling
data to move freely within a server
or out to a network. Further,
the POWER9 processor has a
maximum memory bandwidth of
230 Gbps in scale-up systems and
170 Gbps in scale-out systems.
Beyond data movement
advantages, the POWER9
processor delivers more computing
capabilities over alternative
architectures like x86, with up to 4x
threads per core. When combined
with the balanced systems design
of I/O and memory bandwidth,
this synergistic architecture yields
better results for Linux workloads.
"Large, complex database and
cognitive workloads need a
different strategy, and commodity
systems no longer meet those
requirements," Boday says. "In
the post-processor only era, data
movement to value-add devices is
going to be critical in meeting the
market needs."
CAPI and OpenCAPI
Speed Communication
The POWER9 processor uses
the latest CAPI and OpenCAPI
bus technologies to remove
performance roadblocks.
CAPI allows the processor to